CVE-2026-12490

When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed when the request comes in over TLS over the regular tls-port (and not the tls-auth-port) or over over TCP over the regular port, when the other conditions of the provide-xfr rule match.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12490.txt	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:*

History

26 Jun 2026, 02:08

Type	Values Removed	Values Added
First Time		Nlnetlabs Nlnetlabs nsd
References	~~() https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12490.txt -~~	() https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12490.txt - Patch, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:nlnetlabs:nsd::::::::

25 Jun 2026, 07:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 07:16

Updated : 2026-06-26 02:08

NVD link : CVE-2026-12490

Mitre link : CVE-2026-12490

CVE.ORG link : CVE-2026-12490

JSON object : View

Products Affected

nlnetlabs

nsd

CWE

CWE-284

Improper Access Control

CWE-306

Missing Authentication for Critical Function

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